Head and Neck Small Cell Neuroendocrine Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A neuroendocrine carcinoma that arises from the head and neck and is composed of malignant small cells. The mitotic count is more than 10 per 2 mm2 and/or the Ki-67 index is more than 20% (often more than 70%).

**Synonyms:** - Head and Neck Small Cell Carcinoma - Head and Neck Small Cell Carcinoma